Independent torsioning unit

ABSTRACT

The independent torsioning unit consists of two different units: the case frame and the programming and control unit. The case frame houses the spindle axis, the electrical motor, the drive belt, the yarn guide, the vertical deflection roller, the horizontal deflection pulley and the impulse reader. The programming and control unit consists of a processor, the programming keyboard and a frequency converter that supplies and controls the motor. The independent torsioning unit is used as an auxiliary feeding machine that enhances the performance of any type of main processing machine.

OBJECT OF THE INVENTION

The object of the present invention refers, as its title indicates, toan independent torsioning unit used, through this torsioning unit, tofeed spinning, twisting and other operating machines, in the textileindustry, with materials derived from glass, polyamide, technicalthreads and other products.

BACKGROUND OF THE INVENTION

A series of machines are used in the textile industry with the purposeof making yarn, twisting threads, manufacturing cords and other similaroperations, that are fed from several static reels by proper means ofsaid machines. These means are feeding rollers that are synchronisedwith the spindles of said machines in order to provide the desiredtorsioning degree to the carried out work.

The productivity of the tandem formed by the spindles and thecorresponding feeding rollers is limited by the feeding speed inrelationship to the necessary torsioning degree for each work.

DESCRIPTION OF THE INVENTION

The independent torsioning unit is constituted by two clearlydifferentiated units: a case-frame and a programming and control unit.In the case-frame are housed a spindle and a reel, an electric motor, adrive belt, a yarn guide, a vertical deflection roller, a horizontaldeflection sheave and a pulse reader. The spindle is a component thatcomprises several pieces, preferably vertical, that rotates on a supportwith a bearing that is fixed on the plate of the case-frame. The reel isintroduced on said spindle with material that will be processed and thespindle is endowed with orientation capacity comprised between 0° and45° (for the spindle types requiring it). At the bottom of said spindleit is attached a pulley that is moved, through a flat, preferably gearedbelt, by the electric motor pulley.

The programming and control unit comprises a processor, a programmingkeyboard and a frequency converter, which supplies and manages themotor. The thread to be processed can follow two different paths,depending on the spindle type used: either an upward path, the threadgoing to the yarn guide and to the upper deflection sheave, or adescending path the thread going by the lower deflection sheave, toarrive to the horizontal deflection sheave, that facilitates the threadwithdrawal to the main processing machine.

BRIEF DESCRIPTION OF THE DRAWINGS

For a good understanding of the object of the present invention, in whatfollows a preferred embodiment of the independent torsioning unit objectof the present invention is described, based on the enclosed figures:

FIG. 1.—Schematic view of the independent torsioning unit.

FIG. 2.—Electric diagram of the independent torsioning unit.

PREFERRED EMBODIMENT OF THE INVENTION

The description that will be accomplished about this preferredembodiment refers to an independent torsioning unit of a single spindle,but said unit can comprise an amount of spindles, between one unit andthree hundred units, as a function of the characteristics of the mainprocessing machine to be fed. In the same way, the spindle shownschematically is not a spindle of a certain type, since in theindependent torsioning unit it is possible to use any type of thespindles used to feed spinning, twisting and other operating machines inthe textile industry with materials derived from glass, polyamide,technical threads and other products, like rings spindles for twistingand spinning, hollow axle spindles, double twisting spindles of the socalled “boat” system, spindles of the so called system “cabling”,double, triple and quadruple twisting spindles of horizontal work, etc.

Two clearly differentiated units constitute the independent torsioningunit: the case-frame (1) and the programming and control unit (2). Inthe case-frame (1) are housed the spindle and the reel (11), theelectric motor (3), the drive belt (4), the yarn guide (5), the verticaldeflection roller (6), the horizontal deflection sheave (7) and thepulse reader (8). The spindle (22) is a component, preferably vertical,formed by several pieces, that rotates on a support with bearing (9)that is fixed on the plate (10) of the case-frame (1). The reel (11) isintroduced on said spindle (22) with the material that will be processedand the spindle is endowed with orientation capacity comprised between0° and 45° (for the spindle types requiring it). At the bottom of saidspindle (22) it is coupled a pulley (12) that is driven through a flat,preferably geared belt (4), by the electric motor (3) pulley (13).

The programming and control unit comprises the processor (14), theprogramming keyboard (15) and the frequency converter (16), whichsupplies and manages the motor (3) that in some cases it is endowed ofits own pulse reader (17).

The thread (18) to be processed can follow two different paths,depending on the spindle (22) type used, as it was disclosed in theintroductory preamble of this section, either an upward path (19), thethread (18) going to the yarn guide (5) and to the upper deflectionsheave (6A), or a descending path (20), the thread going by the lowerdeflection sheave (6B), to arrive to the horizontal deflection sheave(7), that facilitates the thread withdrawal to the main processingmachine.

To start the independent torsioning unit operating process, this unit isconnected to the electric power supply, the desired twisting degree thatis being provided to the thread (18) it is programmed through theprogramming keyboard (15) and said thread (18) that leaves thehorizontal sheave (7) is spliced to the thread that is transforming themain processing machine. Since said machine is programmed to operate ata certain speed, the lineal output speed of the thread (18) it isconditioned by said speed, said speed being measured by the pulse reader(8) that sends the information to the processor (14); said processor(14) compares said output speed of the thread (18) with the twistingdegree programmed through the keyboard (15), thus generating thenecessary command to be sent to the frequency converter (16), thatdelivers the necessary power to the motor (3), so that it rotates at thespeed suitable to get the twisting degree as a consequence of thespindle (22) rotation, with which the thread (18) will enter to the mainprocessing machine. On the other hand and only when the task to beperformed requires a high precision degree, the frequency converter (16)by itself compares the command sent by the processor (14) with the motor(3) pulse reader (17) real reading to adjust the speed of said motor (3)again.

The present invention nature being described sufficiently, as well as away of taking it into a practical embodiment, we only need to add thatit is possible to introduce shape, materials and arrangement changes tothe present invention as a whole or to its forming parts, provided thatsaid changes do not vary substantially the invention features that areclaimed hereunder.

What is claimed is:
 1. Independent thread torsioning unit to feedspinning, twisting and other operating machines that perform traction ofa thread (18), being this independent thread torsioning unit of the typesuch as those having a spindle (22), an electric motor (3), a drive belt(4), a yarn guide (5), two alternative vertical deflection rollers (6A)and (6B), a horizontal deflection sheave (7), a pulse reader (8), aprogramming and control unit (2) integrated by a processor (14), aprogramming keyboard (15) and a frequency converter (16) which suppliesand manages the electric motor (3), said control unit (2) storing adesired value of torsion degree of thread (18) introduced by means ofthe keyboard (15), and said pulse reader (8) measuring the speed of thethread (18) when said thread (18) leaves the independent threadtorsioning unit and sending the information of said speed of the thread(18) to the processor (14); wherein said processor (14) calculates thenecessary turning speed of said electric motor (3) as a function of saidspeed of the thread (18) in order to obtain said desired torsion degreeof the thread (18) and sends the appropriate command to the frequencyconverter (16), said frequency converter (16) then providing thenecessary power to the motor (3) in order to make said motor (3) rotateat the appropriate speed so that the thread (18) obtains the desiredtorsion degree as consequence of the spindle (22) rotation. 2.Independent thread torsioning unit, according to claim 1, wherein when ahigh precision of the torsioning degree is required, said motor (3) isendowed with its own pulse reader (17) whose output is fed-back to thefrequency converter (16), that by comparison with the command sent bysaid processor (14) adjusts the turning speed of said motor (3) thatproduces the torsion.